VCloud Air is a public cloud platform built on the trusted foundation of vSphere, compatible with your on-premises data center, that includes infrastructure, disaster recovery, and various applications as service offerings. VCloud Air allows you to extend your workloads into the cloud with ease. You can migrate existing on-site virtual machines (VMs) to the public cloud or start up application VMs directly in the cloud. You can also easily port VMs and other business-critical workloads back and forth to the location of your choice, all with the secure and capable foundation of vSphere.